‘Lock-and-Key’ geometry effect of patterned surfaces: the wettability and the switching of adhesive force

Title
‘Lock-and-Key’ geometry effect of patterned surfaces: the wettability and the switching of adhesive force
Authors
임매순Xing-Jiu Huang김동한이주형윤준보최양규
Issue Date
2009-01
Publisher
Small
Citation
VOL 5, NO 1-94
Abstract
A new type of “lock‐ and‐ key” patterned surface consisting of dense arrays of microfabricated PDMS lens and bowl arrays (see image) without silanization for the wettability and switching of adhesive forces is presented. The microlens‐ arrayed surface (lock) shows a low contact angle and a high adhesive force following the Wenzel state, whilst the imprinted microbowl‐ arrayed surfaces (key), which were replicas of the microlenses, exhibit a high contact angle and an anti‐ adhesive behavior following the Cassie– Baxter state.
URI
http://pubs.kist.re.kr/handle/201004/71040
ISSN
1613-6810
Appears in Collections:
KIST Publication > Article
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